Please identify large yellow moth... I think!

I found this unfortunate guy while in Slovenia recently. I say unfortunate because he landed in the grass near to me and was flapping around, obviously in distress. When I looked closer it appears he must have been attacked by a bird or something because he was missing a front antenna and a front leg.
I thought to leave him there in the hope that a bit of rest in the sun would help, but I then noticed he was about to be swarmed by an army of giant ants! So... I (very gently) scooped him up and put him somewhere safe with some muddy puddle water. Unfortunately though, when I returned later, he had curled up his tootsies and shuffled off this mortal coil etc. etc..
So, I now have this poor creature and I still don't even know what he is! I am torn between hoping he is rare (for the joy of finding something rare), but then again hoping he is not (because then it would be an even bigger shame that he didn't make it!
Please help give him a name! I have put him on a CD to give you an idea of his size. I've only ever seen anything this big in butterfly houses, never in the wild!